Coastal marshes are threatened by relative sea-level (RSL) rise, yet recent studies predict marsh survival even under the high rates of RSL rise expected later in this century. However, because these studies are mostly based on short-term records, uncertainty persists about the longer-term vulnerability of coastal marshes. We present an 8500-year-long marsh record from the Mississippi Delta, showing that at rates of RSL rise exceeding 6 to 9 mm year?1, marsh conversion into open water occurs in about 50 years.

The graphs show monthly mean carbon dioxide measured at Mauna Loa Observatory, Hawaii. The carbon dioxide data (red curve), measured as the mole fraction in dry air, on Mauna Loa constitute the longest record of direct measurements of CO2 in the atmosphere.

Help keep our ocean clean while participating in citizen science! Learn how to use the Marine Debris Tracker app to collect trash, log it, and track it.

Help keep our ocean clean while participating in citizen science! Learn how to use the Marine Debris Tracker app to collect trash, log it, and track it.

Featuring NOAA Marine Debris Program Educational Specialist Leah Henry, this fun and informative ten minute webinar provides a quick demonstration of hands on activities you can easily offer after you show the TRASH TALK special feature for your World Ocean Day event.

A marine debris education partnership between Ocean Conservancy and the NOAA Marine Debris Program. It was developed as a means to educate the next generation about ocean trash and, most importantly, how we all can prevent it.

After [Hurricane Katrina], community members formed a faith-based nonprofit called the Zion Travelers Cooperative Center. Their work began as a grassroots recovery effort, with neighbors helping neighbors gut houses and remove debris, to prepare for rebuilding. Today, the group's work continues. They educate residents about climate change and how rising seas and increasingly intense storms threaten the area. And members advocate for solutions that could help protect them, including wetlands restoration and stronger levees.

The most common argument for the use of nuclear power over power from conventional fossil fuels is the diminished environmental impact that nuclear power promises. While nuclear fission reactions do not directly produce greenhouse gases like fossil fuel combustion, power plants affect the environment in a myriad of ways. In order to elucidate a clearer environmental impact comparison between all power generation methods, including renewables, less obvious environmental effects must be adequately assessed.

Ambitious dreams have now become a reality as the Ocean Cleanup deploys its $20 million system designed to clean up the 1.8 trillion pieces of trash floating in the Great Pacific Garbage Patch. Check out another Forbes piece on how Ocean Cleanup aims to reuse and recycle the ocean plastic. The floating boom system was deployed on Saturday from San Francisco Bay and will undergo several weeks of testing before being hauled into action. The system was designed by the nonprofit Ocean Cleanup, which was founded in 2013 by 18-year-old Dutch inventor Boyan Slat.

The Watershed Game is an interactive, educational tool that helps individuals understand the connection between land use and water quality. Participants learn how a variety of land uses impact water and natural resources, increase their knowledge of best management practices (BMPs), and learn how their choices can prevent adverse impacts. Participants apply the tools of plans, practices, and policies that help them achieve clean water goals for protection and restoration while providing for community growth.